/Engine/Source/Runtime/Engine/Classes/Sound/SoundCue.h
Recursively finds all Nodes in the Tree
void RecursiveFindAllNodes ( [USoundNode](API\Runtime\Engine\Sound\USoundNode) * Node, [TArray](API\Runtime\Core\Containers\TArray)< [USoundNode](API\Runtime\Engine\Sound\USoundNode) * > & OutNodes )